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Filtering by: Subject Douglas fir -- Fertilizers Committee Member Hibbs, David Rights Statement In Copyright

Patterns in understory vegetation communities across canopy gaps in young, Douglas-fir forests of western Oregon

Creator:

Fahey, Robert T.

Abstract:

Canopy gap formation is a major factor contributing to maintenance of overstory species diversity and stand structure in forests and may be integral to development of understory shrub and herb layers as well. Acknowledgement of gap formation as a fundamental feature of natural forests has led to consideration of gaps...

Resource Type:

Masters Thesis

Full Text:

Gaps in Young, Douglas-fir Forests of Western Oregon U. Abstract approved
Stand development after 20-years of growth in Douglas-fir and red alder mixtures

Creator:

Garrelts, Brennan T.

Abstract:

This study examines the long-term role of interference on stand development of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) and red alder (Alnus rubra Bong.) planted mixtures in the Central Cascades of Oregon, USA. The two species are common associates in naturally regenerated and planted conifer stands in the Pacific Northwest. Due...

Resource Type:

Masters Thesis

Full Text:

June 13, 2008. Title: Stand Development after 20-years of Growth in Douglas-fir and Red Alder
Nitrogen dynamics across silvicultural canopy gaps in young forests of western Oregon

Creator:

Thiel, Aaron L.

Abstract:

Silvicultural canopy gaps are emerging as an alternative management tool to accelerate development of complex forest structure in young, even-aged forests of the Pacific Northwest. I investigated patterns of nitrogen (N) availability along transects through 0.1 and 0.4 ha silvicultural gaps in three 50-70 year old Douglas-fir forests of western...

Resource Type:

Masters Thesis

Full Text:

in three 50-70 year old Douglas-fir forests of western Oregon. Six indices of N availability in